Electrical connection



July 22 1924. 1,502,550

G. L. CHAMBERLAIN ELETI CAL CONNECTION Filed Aug. 14, 1922 2Sheets-Sheet 1 Il' L L. SL. il

Patented July 22, 1924.

UNITED sTATEs GEORGE L. CHAMBERLAIN, 0E CHICAGO, ILLINOIS.

ELECTRICAL coNNEcTioN.

Application led August 14, 1922. Serial No. 581,622.

To all whom it may concern.'

Be it known that I, GEORGE L. CHAMBER- LATN, 'a citizen of the UnitedStates, and a resident of the city of Chicago, county of Cook, and Stateof Illinois, have invented certain new and useful Improvements inElectrical Connections, of which the followin 1s a specification.

y invention relates to improvements in electrical connections especiallyadapted for use in conjunction with electrical transformers or similarelectrical appliances and has for its object the provision of suitableelectrical connections of this character by means of which saidelectrica-l appliance may be readily removed from an electric circuitand the circuit restored to operation.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyi-ngdrawings forming a part.of this specification, and in which,

Fig. 1, is a section of electrical connections embodying the inventionshown as employed in combination .with a transformer, said section beingtaken substan- -tially on line 1-1 of E ig. 2,

' Fig. 2, is a section taken on line 2--2 of 1, and ig. 3, is anenlarged detail section showing the primary leads rto the transformerdisconnected therefrom and connected with each other to restore thecircuit after the removal of the transformer.

The preferred form of vconstruction as illustrated in the drawings,comprises a suitable box or casing 4`having a transformer 5 of usualconstruction: mounted therein in' the` usual manner. The transformer 5is provided with any usual or desired form or arrangement of secondaryleads ,or Wires 6. So much of the construction disclosed in the drawingisold and'well known and a usual one for the purpose, the presentinvention relating particularly to the primary connections for thetransformer t0 be presently described.

The transformer 5 is also provided with the usual wires. 7 and 8connected with the primary winding thereof in the usual fway. The wire 7leads to and is electrically connected with a metallic socket mem-ber 9mounted at, the inner, end of a tube 10 leading into the casi-ng 4 asshown. The tube 10 is provided with a tubular lining 10 of insulatingmaterial and the socket member 9 is arranged as shown at the inner endof the tube 10 to insulate the same from the casing 4. The correspondingprimar lead 11 for supplying current to the trans ormer has the extremeend of its conductor formed into a split pin 12 adapted and arranged tobe inserted in the socket member 9 and form a good electrical connectiontherewith. A suitable coupling 13 is provided for connecting the outercasing 11 of the lead 11 with the tube 10 as shown.

The other wire 8'leads to and is electrically connected with a split pin14 arranged as shown at the inner end of the corresponding tube 15having a lining 15 ofA insulating material. The other primary lead 16 isprovided with a socket member 17 permanently secured to the extreme end18 of the conductor thereof, the socket member 17 being' adapted andarranged to snugly fit either the pin 14 or the pin 12.

' A' suitable coupling` 13 is also arranged for this connection.- Bythis arrangement it will be observed that should the transformer" 5 getout of order or the removal therefrom the circuit be otherwise desired,the same may be readily disconnected from the leads 11 and 16 and saidleads readily connected to each other as illustrated in Fig. 3 andwhereby the transformer or other electrical appliance will be removedfrom ,the main or primary circuit and such circuit readily restored.After the connection is thus made between the leads 11 and 16 suitableinsulation will usually be placed around the joint thus affected,although not necessarily so. The specific form .and arrangement of partsconstitutes a simple and effective one for the purpose.

While I have illustrated and described the preferred form ofconstruction for carrying my invention .into effect, this is capable ofvariation and modilicationwithout departing from the spirit of theinvention. I, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having described my invention, what IV claim as new and desire -t secureby Letters Patent is:

1. The combination with an electrical appliance, of complementaryelectrical connections for supplyin current thereto; and current leadsprovi ed with corresponding complementary connections engageable ethe'rwith said appliance connections or with each other, said current leadsbeing free to be connected either to said appliance or to each other,substantially as described.

2. rlhe combination with an electrical appliance, of complementary slip.joint electrical connections for supplying current thereto; andcurrent'leads provided with corresponding complementary slip jointconnections engagea le either with said a pliance connections or witheach otherlsa1d current leads being free to be connected either to saidappliance or to each other, subp stantially as described.

3. rlhe combination of a casing; an electrical appliance enclosed insaid casing; complementary electrical connections mounted on said casingfor supplying current tosaid electrical. appliance; and current leadsprovided with corresponding complementary. connections engageable eitherwith said =casing connections or with each other, said current leadsbeing free to be connected either to said appliance or to each other,substantially, as described.

4. The combination with a casing; an electrical appliance within saidcasing; tubes leading into said casing; complementary slip jointelectrical connections mounted in said tubes and electrically connectedwith said appliance; and current leads provided with correspondingcomplementary slip joint connections engageable either with theconnections in said tubes or Aname to this specification in the Lacassewith each other, substantially as described.

5. The combination of a casing; an` electrical appliance within saidcasing; two tubes leading into said casing; a socket mounted at theinner end of one of said tubes; a complementary pin mounted at the innerend of one of sald tubes; 'electrical connections between said socketand pin and said electrical appliance; and leads provided socket and pinto the primary winding of' said transformer; a lead insertable in one ofsaid tubes and provided with a pin insertable in the socket therein; andanother lead 'provided with a socket insertable in the other tube andengageable -with the pin therein orwith the pin on said other lead, p

substantially as described.

In testimony vshereof l have signed my presence of two 'subscribingwitnesses.

GEORGE L. CHAMBERLAIN. l/Vitnesses: 1

JosHUA R. H. Porre,

FREDA C. APPLETON.

